baber/WOPTO huggingface dataset:
Patent GB-636888-A (GB)
Title: Improvements in machine vibrators
IPC: B06B1/18
Filed: 1947-03-05
Abstract: 636,888. Vibrating mechanism. PETERSON, E. F. March 5, 1947, No. 6260. Convention date, June 26, 1946. [Class 80 (iv)] A vibrator, more particularly for attachment to moulding apparatus, comprises a hollow cylindrical body 1 formed with a ring-shaped hard metal raceway 11 having in its inner surface a groove connected with a tangential air inlet 2a and a ball 10 rollable round the raceway to cause vibration of the body. A cover plate 6 secured to the body by a bolt 7 has an opening 9 larger than required for the bolt 7 so as to leave an annular opening for escape of air by way of approximately radial passages 16 crossed by a circular groove which may receive wool packing 14 to prevent the entry of dirt. A thin washer 8 covers these grooves. An attachment lug 3 is formed with two bolt holes 4a and 4b at right angles and with two sets of faces such as 5a forming a right angle to receive a corner of the apparatus to which the body is to be attached. By this means the body may be secured to the apparatus so as to vibrate in either a vertical or a horizontal plane.
Patent GB-1039713-A (GB)
Title: Improvements in and relating to bleach liquids
Inventor: AUCHINCLOSS THOMAS RALPH
IPC: D06L4/23
Filed: 1962-02-19
Abstract: An aqueous alkaline hypochlorite solution suitable for general household cleaning and disinfection purposes, e.g. sodium hypochlorite, is perfumed by containing it in a squeeze bottle and admixing with it 0.05-0.5% by weight based on the total weight of the solution, of a perfume which is soluble in the hypochlorite solution to a degree not exceeding 5% by weight of the total amount added, e.g. geraniol and/or phenyl ethyl alcohol.  The squeeze bottle which may be made from high density polyethylene or polypropylene may have an orifice which is 1/8 -\ba1/16 inch in diameter.ALSO:An aqueous alkaline hypochlorite bleach solution suitable for use in the bleaching of textile fabrics, e.g. sodium hypochlorite, is perfumed for domestic purposes by containing it in a squeeze bottle and admixing with it 0.05-0.5% by weight, based on the total weight of the solution, of a perfume which is soluble in the hypochlorite solution to a degree not exceeding 5% by weight of the total amount added, e.g. geraniol and/or phenyl ethyl alcohol.  The squeeze bottle which may be made from high density polyethylene or polypropylene may have an orifice which is 1/8 -\ba1/16 inch in diameter.
Patent GB-291860-A (GB)
Title: Improvements relating to the control of doors or gates for mining and other purposes
IPC: E05F15/02
Filed: 1927-03-08
Abstract: 291,860. Childe, L. B., Kershaw, A. G., and Westinghouse Brake & Saxby Signal Co., Ltd. March 8, 1927. Operating and controlling doors and gates hydraulically and pneumatically and by treadles and the like.-For mining and like purposes where two or more doors or gates are arranged in succession across the track, as for the air-locks in collieries, the action of the manually-operated control valve at the point of control is arranged to be superseded automatically as regards effecting the closure of each door or gate 'remote from the point of control until the traffic conditions at this door or gate are such as to permit its closure. An arrangement is described in which the closure of the door or gate remote from the point of control is controlled by an axle counter adjacent this door. The control valve 5 is arranged to admit pressure fluid from the pipe 18 through the pipes 16, 17 to the cylinders 3, 4 to open the doors 1, 2 respectively, the midposition of the handle 15 putting the pipes 16, 17 to exhaust when either of the doors is in the open position. When it is desired to admit a number of trucks into the air-lock the door 1 is opened by moving the handle 15 to the left, pressure fluid from the pipe 18 passing through the valve 9 and pipe 19. The door 1 in opening reverses the valve 7 and places the cylinder 4 of the door 2 to exhaust through the pipe 24. After the door 1 has been closed bv the return of the handle 15 to the mid-position, the door 2 is opened by moving the handle 15 to the right, the pressure fluid admitted through the pipe 17 reversing the position of the check valve 21. The trucks that pass through the open door 2 engage the axle counter 10 and reverse the valve 11 to establish communication between the pipes 14 and 12 for for the supply of pressure fluid through the valve 7 to the cylinder 4. The door 2 is thus maintained in the open position until the predetermined number of trucks have passed over the axle counter 10 and are clear of the door. The valve 11 is then restored to the position shown with the pipe 12 put to exhaust 13, and movement of the control handle 15 to exhaust then serves to release the pressure fluid from the cylinder 4 by way of pipes 23, 22 and 17.
Patent GB-485891-A (GB)
Title: Improvements in and relating to alarm devices for thermionic valve circuits
IPC: H03F1/54
Filed: 1937-03-04
Abstract: 485,891. Valve circuits. TELEPHONE MANUFACTURING CO., Ltd., and PADDLE, L. H. March 4, 1937, No. 6441. [Class 40 (v)] A relay controlling an alarm circuit is included in the cathode lead of a valve so that the voltage across the relay can be used to bias the grid of the valve. The relay may comprise all or part only of the bias resistance and is shunted by a byepass condenser. A single alarm device may be provided for a number of valves, the contacts of the several relays being connected in parallel.
Patent GB-885760-A (GB)
Title: Tetracycline compounds and the preparation thereof
IPC: A61K31/65
Filed: 1960-02-24
Abstract: Halogenated tetracyclines are prepared by contacting an acid-stable tetracycline, particularly a 6-deoxy- or 6-deoxy-6-demethyl-tetracycline or a corresponding 4-desdimethylamino compound, or a mineral acid salt thereof, in a reaction-inert solvent, with at least a molar equivalent of a halogenating agent selected from perchloryl fluoride, bromine, chlorine, iodochloride, iodobromide, N-chloro, N-iodo and N-bromo lower alkanoic acid amides, hydrocarbon dicarboxylic acid imides and N-(lower alkanoyl) aniline, pyridinium perbromide and perchloride hydrohalides, lower alkyl hypochlorites, and 3-chloro-, 3-bromo-, 3,5-dichloro-and 3,5-dibromo-5,5-dimethyl-hydantoin.  When the tetracycline starting compound contains a 4-dimethylamino substituent, it is preferably reacted with a chlorinating, brominating or iodinating agent in the presence of an acid catalyst.  When perchloryl fluoride is used as fluorinating agent it is preferably used in the presence of an alkali metal lower alkoxide or an alkali or alkaline earth metal hydroxide, bicarbonate or carbonate.  When an equimolar amount of chlorinating, brominating or iodinating agent is employed the principal product is the corresponding 11a-halotetracycline; the desdimethylamino compounds give with a 2 : 1 molar ratio the 7,11a-dihalo compound and with a 3 : 1 molar ratio the 7,9,11a-trihalo compounds; the dimethyl amino compounds give with two moles of a chlorinating agent the corresponding 7,11a-dichlorotetracycline but with a brominating or iodinating agent the corresponding 7-bromo or 7-iodo tetracycline is obtained.  When the starting compound is an 11a-halo tetracycline p treatment with an equimolar amount of halogenating agent gives, when the 11a halogen is bromine or iodine, a 7-monohalo tetracycline and when the 11a-halogen is chlorine or fluorine the product is a 7-halo-11a-chloro- or fluorotetracycline.  Reaction of the starting material with perchloryl fluoride gives an 11a-fluorotetracycline. The 11a-halogen may be removed from the final products by conventional procedures, particularly by hydrogenation.  Products whose preparation is described include 11a-chloro-, 11a-bromo-, 11-fluoro-, 11a-iodo and 7,11a-dichloro-6-deoxy-6-demethyl tetracycline, 11a-bromo-6-deoxytetracycline hydrobromide, 11a - bromo - 6 - deoxy - 5 - oxytetracycline, 7,9,11a-tribromo-, 7,9-dibromo-11a-fluoro-, 7-bromo-11a-fluoro-, and 7,9-diiodo-11a-fluoro-6-deoxy - 6 - demethyl - 4 - desdimethylamino - tetracycline, 7, 9 - dibromo - 11a - fluoro - 6 - deoxy - 4 - desdimethylaminotetracycline, and 11a-bromo-6-deoxy-tetracycline.ALSO:Pharmaceutical preparations comprise an 11a-halogenated acid-stable tetracycline (see Group IV (b)) and a pharmaceutical carrier.  The preparations may be made up as oral suspensions, as tablets or capsules or as solutions suitable for parenteral administration, and may also contain ascorbic acid.
Patent GB-402734-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G9/00
Filed: 1932-03-03
Abstract: 402,734. Electrolytic condensers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Electricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) March 3, 1932, No. 6460. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 4, 1932]. [Classes 37 and 41.] The metal strip electrodes of electrolytic condensers and rectifiers more particularly of the wound type are formed separately before assembly. The electrolyte used may be different from that to be used in the condenser &c. when assembled, and afurther forming operation may take place after assembly. In an example aluminium foil strip A is passed in the direction of the arrow from a roll C under rollers H in a bath B and is the anode for the forming current, the cathode being a block F. To distribute the current flow to obtain a uniform coating, the strip A is made to pass through insulating partitions E.
Patent GB-610560-A (GB)
Title: Improvements relating to machines for forming pellets or small particles of plastic materials
IPC: B29B9/06
Filed: 1946-03-01
Abstract: 610,560. Forming rubber &c. into pellets by extrusion machines. BROWN, F. E. March 1, 1946, No. 6484. [Class 87(ii)] A head for a pelletizer for rubber and the like in which a tubular die having openings which are in rows parallel to the axis of the die, has one or more knives also parallel to the axis, and driving mechanism operative to move each knife intermittently so that at each movement, each knife makes a sharp cut over one row of openings to sever the extruded material into pellets and then pauses before cutting over the next row. In a preferred form, the die 22, Fig. 3, is cylindrical and 4 knives 45 are caused, e.g. by a Geneva stop-motion mechanism to move over each row of openings at uniform speed and then to pause for a period equal to several times that taken to make the cut. In a modification, Fig. 6, the die 64 is a frustrum of a core and 2 knives carried on arms 74 are moved by Geneva mechanism 79, 80. Spindle 83 is hollow and may be used for conveying powdered chalk or lubricant to the pellets. Specifications 536,421, 610,597 and 610,598 are referred to.
Patent GB-714448-A (GB)
Title: Improvements in or relating to the attachment of knobs to cameras
IPC: G03B19/04
Filed: 1952-03-13
Abstract: 714,448. Securing articleson shafts. HEIDECKE, R., [trading as FRANKE & HEIDECKE]. March 13, 1952 [June 20, 1951], No. 6539/52. Class 80 (2) A push-on knob for attaching. to a rotary actuating knob on a camera comprises a body and a cap relatively movable axially and claws within the body having a concentric inward spring action to engage over, and to clamp the push-on knob on the camera knob. As shown in Fig. 3 a pushon knob 10 is attached to a camera knob. 7 by a plurality (e.g. three) of claws 20 engaging over a knurled part 14 of the knob 7 and urged inwardly by an internal conical surface 24 of the knob 10. A part 21 of each claw 20 engages a groove 22 in a member 23 to which is screwed a cap 29. A compression spring 30 acts between the cap 29 and a dished plate 27 radially extending fingers 26 of which engage a shouLder 25a of the knob 10. The spring thereby acts on the claws 20 to retain the knob 10 in position. Removal of the knob 10 is effected by moving it axially relatively to the cap 29 compressing the spring 30 until a shoulder 19 abuts portions 11 of the claws 20 to tilt them outwardly clear of the knob 14. A similar operation is performed for attachment. The knob 10 is provided with a graduated conical surface 17 for use instead of that 12 of the knob 7. In a further embodiment, Fig. 6, a cylinder 51 and a disc 44 are inscribed with related data which is readable through windows 53 in the knob body and 42, 43 in a disc 34. The spring 41 which urges the claws 49 to grip the knob 7 acts on a cap 32. This cap carries the .cylinder 51 and the disc 44 and is connected by a dog 48 with notches 47 in a sleeve 45 rotatably keyed to the knob body and by a stud 38 to notches 40 in the disc 34. The length of the sleeve 45 is such that axial movement of the cap 32 against the spring 41 may take place sufficient to disengage the dog 48 and stud 38 without disengaging the claws 49. Adjustment of the cylinder 51 and disc 44 relative to the windows 53 and 42, 43 may then be made.
Patent GB-646058-A (GB)
Title: Improvements in or relating to endoscopic instrument
IPC: A61B1/307
Filed: 1947-01-23
Abstract: 646,058. Endscopes. AMERICAN CYSTOSCOPE MAKERS, Inc. Jan. 23, 1947, No. 6548/49. Convention date, Jan. 31, 1946. Divided out of 646,022. [Class 81(ii)] In an endoscope of the type described in Specification 646,022 a catheter deflector 85 is pivoted at 86 to the stem of the instrument and is disposed in the field of vision of the telescope, mechanism for pivoting the deflector comprising a block 91 longitudinally reciprocable in a housing by means of a screw 95 and having connected thereto shafts 87 which at their forward ends are connected to the deflector.
Patent GB-115482-A (GB)
Title: Improvements in or relating to Gramophones and like Sound-producing Machines.
IPC: G10K13/00
Filed: 1917-05-08
Abstract: 115,482. Logan, H. T., and Universal Music Co. May 8, 1917. Sound - magnifyinq appliances.-In a tone chamber arranged between the sound-box C<5> and the horn C of a gramophone, the admission and delivery orifices for the sound are both on the same side of the tone chamber. A series of tone chambers consisting of tubes D<1>, with their lower ends closed, may be carried on a rotatable disk D so that any one may be brought into register with the plates C' to which the small end of the horn and the sound arm are connected. The tubes may be provided with diaphragms of different tones
Patent GB-1460836-A (GB)
Title: Ultraviolet radiation lamp reflector assembly
IPC: G02B27/00
Filed: 1974-03-13
Abstract: 1460836 Lamp reflector assemblies; lamps SUN CHEMICAL CORP 13 March 1974 [19 March 1973] 06660/76 Divided out of 1460833 Headings F4G and F4R  The subject matter is as that in parent Specification 1,460,833 but the claims relate to an ultraviolet radiation lamp reflector assembly 240 comprising a unitary unbroken, reflector insert support having one surface that is defined in the form of two neighbouringly positioned concavely shaped cylinder segments 242, 244 each of which is open and oriented so as to face generally towards a common focus. The segments 242, 244 have different respective generally parallel longitudinal axes and each has longitudinally extending side edges comprising support means for supporting respective reflective inserts 248, 250 of sheet, ultraviolet light reflective material. An elongate ultraviolet radiation lamp 212, 214 is provided for each insert, each lamp being positioned relative to its respective reflective insert such that radiation reflected therefrom is reflected generally towards the common focus of the segments 242, 244. The assembly may be liquid and air cooled. In a construction (Figs. 1 to 7, not shown) not claimed a liquid cooled reflector is provided having only one lamp associated therewith.
Patent GB-128337-A (GB)
Title: Improvements in or relating to High-temperature Development of Photographic Materials.
IPC: G03C5/26
Filed: 1918-04-20
Abstract: 128,337. Agnew, A. J., Renwick, F. F., and Ilford, Ltd. April 20, 1918. Developing. - Gelatine-surfaced photographic materials prior to treatment with a developer or other aqueous solution, are treated in a bath containing formalin. paraformaldehyde. or a compound from which formaldehyde is readily generated, and a salt which tends to raise the melting- point of a gelatine jelly and tn retard the swelling of dry gelatine when placed in water. Examples of such salts are sodium citrate, sulphate, or phosphate, and generally acetates, tartrates, oxalates, sulphates, phosphates, chromates, bicarbonates, and borates. Almost any base may be employed; for instance, in addition to sodium salts, those of ammonium and magnesium. A particular example of a suitable bath is  oz. of 40 per cent formalin or 50 grains or paraformaldehyde, 2 oz. of sodium sulphate crystals, or 1 oz. of disodiumorthophosphate in a maximum of 10 oz. of water. The mixture may be made up dry, the salts being in an anhydrous form, and may be packed in powder form or as pellets.
Patent GB-558114-A (GB)
Title: Improvements in and relating to holders for thermionic valves and other electrical devices
IPC: H01R33/76
Filed: 1942-05-19
Abstract: 558,114. Thermionic valve holders ; two-part couplings. CARR FASTENER CO., Ltd., and WAGSTAFF, G. May 19, 1942, No. 6787. [Class 38 (i)]  A holder for a thermionic valve &c. has contacts each consisting of a pair of side members 15 forming a clip bent up from a base portion 14 which is imperforate so as to act as a stop for the end of the valve contact pin, and a central socket for the guide pin of the valve formed with an inwardly projecting rib or ribs pressed into engagement with the pin by an encircling resilient ring or the like. The central socket 5 is made from sheet metal and has wings 6 with a space between them to receive a rib on the guide pin. Downwardly extending legs 9 are bent to form inwardly projecting ribs 10 and in the hollow 11 formed on the exterior, a split ring 13 is located. The socket is mounted by means of a flange 7 and pressed-out portions 8.
Patent GB-1358532-A (GB)
Title: Mechanical power presses
IPC: B21J9/18
Filed: 1973-02-13
Abstract: 1358532 Forging presses ZDARSKE STROJIRNY A SLEVARNY NARODNI PODNIK 13 Feb 1973 [16 Feb 1972] 6918/73 Heading B3H [Also in Division B5] A toothed wheel 7 which drives through a clutch a crank-shaft 3 of a press is driven by at least two pinions 9, 10, each pinion being mounted on a shaft carrying a flywheel 13, 14 driven by synchronized motors 15, 16.
Patent GB-213254-A (GB)
Title: Improvements relating to cupping appliances
IPC: A61M1/08
Filed: 1924-03-18
Abstract: 213,254. Bosredon, H. P., (Assignee of Rollin, J. L.). March 24, 1923, [Convention date]. Cupping - appliances. - A cupping-appliance comprises a glass or cup 1 formed with an aperture 2, a suction pump 3 having a rubber mouthpiece 5 adapted to be applied to the cup, so as to cover the aperture 2, and a paper tongue 7, preferably gummed, placed between the cup and the pump so as to act as a valve during the pumping action and as a closure for the aperture 2 when the pump is removed. The paper closure 7 may be punctured or severed to allow air to enter the cup 1 so that it may readily be removed after use. the end of the shaft. The crank slide is secured in adjusted position in its groove by means of a pointed steel set-screw passing through the crank pin and slide and bearing against the bottom of the dovetail groove so as to cause the slide to jam and so as to make a punch mark in the soft steel bed of the groove. Specifications 21653/00, 5067/06, and 128,524 are referred to.
Patent GB-1130126-A (GB)
Title: A timer having an adjustable time interval
IPC: H01H43/12
Filed: 1967-02-14
Abstract: 1,130,126. Mechanical interrupters. MALLORY TIMERS Ltd. 14 Feb., 1967 [14 Feb., 1966], No. 6950/67. Heading H1N. The rate of advance of a cam spindle 26 driven by a ratchet-and-pawl mechanism 37, 42 is variable. An arm 32 carrying the pawl 37 is moved outwardly against a spring 30 by a fourlobe cam 17 on a motor-driven spindle 16. The arm is restrained from returning, when released by the cam, by a spring-loaded plunger 29 which is retracted at desired intervals by a solenoid (43). The latter is controlled by selected contacts 19, 20 or 21 actuated by projections 22, 23, 24, (33) of different radial lengths on a gearwheel 15 on spindle 16. The solenoid may thus be energized once, twice or four times per revolution and hence the cam-shaft 26 is advanced once, twice or four times per revolution of spindle 16.
Patent GB-1382401-A (GB)
Title: Solid state laser
IPC: H01S5/183
Filed: 1973-02-13
Abstract: 1382401 Electroluminescence INSTITUT POLUPROVODNIKOV AKADEMII NAUK UKRAINSKOI SSR 13 Feb 1973 6966/73 Heading C4S [Also in Division H1] A laser active medium comprises an electroluminescent solid doped with an impurity providing centres for impact excitation in the presence of an electric field, the electrodes applying the field being combined with or forming reflective surfaces defining the laser resonator. As shown in Fig. 1, the laser active medium 4 comprises a film of ZnS doped with 1-2% by weight of Mn which is supported on a. reflective metal substrate 1 overlaid by a highly reflective electrode 2 and a protection layer 5 such as a ZnS film. The active medium 4 is overlaid by an insulating layer 6, e.g. of SiO, and a partially reflective electrode 3. Both electrodes may be formed of AP or Au and be either continuous or form a symbolic or geometric pattern, particular shapes being exemplified, while the active medium may be a solid  body or a powder in a dielectric immersionmedium of the same refractive index. A glass or quartz substrate may be used for laser emission through the substrate. Medium 4 may be a crystal with plane-parallel polished facets, substrate 1 being omitted. In a modification, Fig. 2, the electrodes 3 and 14 are combined with reflective multilayers 7, 8, 9 and 10, 11, 12 of alternating high and low refractive indices formed by alternate deposits of ZnS and MgF 2  or ZnS and NaAlF 6 . The electrodes are transparent films formed of a conductive material such as SnO 2 , In 2 O 3 , CdO or ZnO. The various layers are formed by evaporation in vacuum, and the protection layer 5 and the active medium are crystallized in turn by vacuum annealing. Audio frequency excitation at 65 to 75 volts may be used. The active medium may be doped with rare earth elements and the protection layer 6 may also be Tn 2 O 5  or CaF 2 .
Patent GB-879571-A (GB)
Title: Improvements in or relating to inflation valve assemblies
Inventor: WELLS WILLIAM NEIL
IPC: B60C29/04
Filed: 1957-03-02
Abstract: 879,571. Tyre valves. DUNLOP RUBBER CO. Ltd. Feb. 19, 1958 [March 2, 1957], No. 7010/57. Class 135. The rubber valve base 111 to which the valve stem 10 of a pneumatic tyre inflation valve is vulcanized is formed with an annular ridge 112 on its face remote from the inner tube 12 so that during the moulding operation in attaching the base to the inner tube, a rubber patch 14 (synthetic or natural) securing the inner tube reinforcement 13 of weak weft nylon cord fabric to the base, is prevented from extruding into the space between the valve stem 10 and the mould 15.